Librarian MCP Server

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local only

Librarian runs on your own machine — the client starts it, so there is no endpoint to ping. 87 installs a week from pypi. Last commit 10 Jul 2026.

Deterministic ebook-to-markdown pipeline with MCP tools to browse, search, and read your books.

Installs per day peak 30 · avg 12 · +47% w/w

a month agotoday

Installs / week

pypi · librarian-cli

Stars

0 open issues

10 Jul 2026

Last commit

from GitHub

MIT

License

Python

Nothing serious here today

Today is the operative word: we check Librarian every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add librarian -- uvx librarian-cli

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "librarian": {
      "command": "uvx",
      "args": [
        "librarian-cli"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.librarian]
command = "uvx"
args = ["librarian-cli"]

.cursor/mcp.json

{
  "mcpServers": {
    "librarian": {
      "command": "uvx",
      "args": [
        "librarian-cli"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "librarian": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "librarian-cli"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: LIB_HOME (Library root directory (default ./library)).

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Librarian — questions

Answers built from our own checks of this server.

Why is there no uptime for Librarian?

Librarian runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package librarian-cli was installed 87 times last week.

How do I connect Librarian?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls librarian-cli straight from pypi; nothing to host, nothing to sign up for.

How many people use Librarian?

The pypi package librarian-cli was installed 87 times in the last week. Week over week that is +47%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Librarian open source?

Yes — it is published under the MIT licence, written in Python and 2 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.